Auto-stereoscopic display apparatus

Abstract

An auto-stereoscopic display apparatus includes a display panel and a lens film. The display panel includes sub-pixel structures along an X-direction and a Y-direction to form a pixel array. A horizontal width of each sub-pixel structure is L 1. The lens film is located at one side of the display panel. The lens film includes cylindrical lenses. An included angle is between an extension direction of the cylindrical lenses and the Y-direction. A width of each cylindrical lens in the X-direction is L 2, and L 2 /L 1 =4.61±0.05. When the number of pixels per inch (PPI) is more than 110, the range of included angle between the extension direction of the cylindrical lenses and the Y-direction is from 16 degrees to 18 degrees. When PPI is less than 110, the range of included angle between the extension direction of the cylindrical lenses and the Y-direction is from 8 degrees to 11 degrees.

What is claimed is: 
     
         1 . An auto-stereoscopic display apparatus comprising:
 a display panel comprising a plurality of sub-pixel structures arranged along an X-direction and a Y-direction to form a pixel array, wherein a horizontal width of each of the sub-pixel structures is L 1 ; and   a lens film located at a side of the display panel, the lens film comprising a plurality of cylindrical lenses, wherein each of the cylindrical lenses in the X-direction has a width L 2 , an included angle is between an extension direction of the cylindrical lenses and the Y-direction,
     L 2/ L 1=4.61±0.05,
 
   when the number of pixels per inch is more than 110, the included angle between the extension direction of the cylindrical lenses and the Y-direction ranges from about 16 degrees to about 18 degrees, and   when the number of pixels per inch is less than 110, the included angle between the extension direction of the cylindrical lenses and the Y-direction ranges from about 8 degrees to about 11 degrees.   
     
     
         2 . The auto-stereoscopic display apparatus as recited in  claim 1 , wherein L 2 /L 1 =4.63±0.02. 
     
     
         3 . The auto-stereoscopic display apparatus as recited in  claim 1 , wherein the display panel further includes a light-shielding pattern layer disposed corresponding to the sub-pixel structures, such that each of the sub-pixels structures has one transparent region and one non-transparent region, each of the sub-pixel structures has a transparent length H 2  in the transparent region, and a maximum transparent length is H 1 . 
     
     
         4 . The auto-stereoscopic display apparatus as recited in  claim 3 , wherein H 2 /H 1 =0.7±0.3 when the number of pixels per inch is more than 110. 
     
     
         5 . The auto-stereoscopic display apparatus as recited in  claim 4 , wherein H 2 /H 1 =0.8±0.2. 
     
     
         6 . The auto-stereoscopic display apparatus as recited in  claim 3 , wherein H 2 /H 1 =0.65±0.35 when the number of pixels per inch is less than 110. 
     
     
         7 . The display apparatus as recited in  claim 3 , wherein a long-side edge of the transparent region in each of the pixel structures is not parallel to a long-side edge of the non-transparent region. 
     
     
         8 . The auto-stereoscopic display apparatus as recited in  claim 1 , wherein each of the cylindrical lenses is disposed corresponding to several sub-pixel structures of the pixel structures.